Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

LANDSTAR SYSTEM INC

LSTR · Nasdaq · CIK 0000853816 · Industrials · Integrated Freight & Logistics

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

11 Form 4 transaction lines observed in the same window
2 sales · 9 option, withholding, award, gift or other lines

Last qualifying purchase2022-03-15 · Akbari Dr. Homaira · $76.9K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesLow
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
MURPHY DIANA MDirector
○▼
Todd James PVP and CFO
▼
WHITE TERESA LDirector
○
Scanlon George PDirector
○
Liang James LDirector
○
HART MELANIE MDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 4 additional owner(s) remain in Form 4 evidence.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2022-03-15 · Akbari Dr. Homaira.

Recent Form 4 activity

0Purchases
2Sales
29Other Form 4 lines
22SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING2 sale line(s) · context only
OTHER9 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
1,642,178
Previous report
1,647,871
Avg daily volume
348,884
Days to cover
4.7

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2022-03-15Akbari Dr. HomairaPurchase (P)Common Stock500USD 153.80USD 76,900SEC filing ↗
2022-02-24Akbari Dr. HomairaPurchase (P)Common Stock2,000USD 151.30USD 302,600SEC filing ↗

Form 4 evidence

31 transaction lines in the latest 365-day window; 256 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-01Clement William CAward / grant (A)Common Stock4,924USD 0.00USD 0SEC filing ↗
2026-06-15Todd James PSale (S)Common Stock1,200USD 218.17USD 261,804SEC filing ↗
2026-06-05MURPHY DIANA MSale (S)Common Stock11,246USD 221.28USD 2,488,515SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-01Clement William CAward / grant (A)Common Stock4,924USD 0.00USD 0SEC filing ↗
2026-06-15Todd James PSale (S)Common Stock1,200USD 218.17USD 261,804SEC filing ↗
2026-06-05MURPHY DIANA MSale (S)Common Stock11,246USD 221.28USD 2,488,515SEC filing ↗
2026-05-06WHITE TERESA LAward / grant (A)Common Stock825USD 0.00USD 0SEC filing ↗
2026-05-06Scanlon George PAward / grant (A)Common Stock825USD 0.00USD 0SEC filing ↗
2026-05-06MURPHY DIANA MAward / grant (A)Common Stock825USD 0.00USD 0SEC filing ↗
2026-05-06Liang James LAward / grant (A)Common Stock825USD 0.00USD 0SEC filing ↗
2026-05-06HART MELANIE MAward / grant (A)Common Stock825USD 0.00USD 0SEC filing ↗
2026-05-06Blanton Jonathan BarrAward / grant (A)Common Stock825USD 0.00USD 0SEC filing ↗
2026-05-06BANNISTER DAVID G/Award / grant (A)Common Stock825USD 0.00USD 0SEC filing ↗
2026-05-06Akbari Dr. HomairaAward / grant (A)Common Stock825USD 0.00USD 0SEC filing ↗
2026-03-15Miller MatthewTax withholding (F)Common Stock130USD 146.78USD 19,081SEC filing ↗
2026-02-23Lewis Terri MAward / grant (A)Common Stock4,511USD 0.00USD 0SEC filing ↗
2026-02-02Lonegro Frank ATax withholding (F)Common Stock2,085USD 154.55USD 322,237SEC filing ↗
2026-01-31Todd James PTax withholding (F)Common Stock519USD 148.91USD 77,284SEC filing ↗
2026-01-31Miller MatthewTax withholding (F)Common Stock159USD 148.91USD 23,677SEC filing ↗
2026-01-31Lonegro Frank ATax withholding (F)Common Stock922USD 148.91USD 137,295SEC filing ↗
2026-01-31Kneller Michael KTax withholding (F)Common Stock365USD 148.91USD 54,352SEC filing ↗
2026-01-31Dannegger Matthew MTax withholding (F)Common Stock357USD 148.91USD 53,161SEC filing ↗
2026-01-31CORO RICARDO STax withholding (F)Common Stock366USD 148.91USD 54,501SEC filing ↗
2026-01-31Applegate James MTax withholding (F)Common Stock227USD 148.91USD 33,803SEC filing ↗
2026-01-30Todd James PAward / grant (A)Common Stock1,678USD 0.00USD 0SEC filing ↗
2026-01-30Miller MatthewAward / grant (A)Common Stock1,678USD 0.00USD 0SEC filing ↗
2026-01-30Lonegro Frank AAward / grant (A)Common Stock6,715USD 0.00USD 0SEC filing ↗
2026-01-30Kneller Michael KAward / grant (A)Common Stock1,678USD 0.00USD 0SEC filing ↗
2026-01-30Dannegger Matthew MAward / grant (A)Common Stock1,175USD 0.00USD 0SEC filing ↗
2026-01-30CORO RICARDO SAward / grant (A)Common Stock1,678USD 0.00USD 0SEC filing ↗
2026-01-30Applegate James MAward / grant (A)Common Stock1,175USD 0.00USD 0SEC filing ↗
2025-10-31HOUSEY HART MELANIEAward / grant (A)Common Stock645USD 0.00USD 0SEC filing ↗
2025-10-31Blanton Jonathan BarrAward / grant (A)Common Stock645USD 0.00USD 0SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerLSTR
CIK0000853816
SectorIndustrials
IndustryIntegrated Freight & Logistics Yahoo Finance
SEC SIC4213 Trucking (No Local)
ExchangeNasdaq

Data coverage

Local Form 4 history256 transaction lines from 2020-01-31 to 2026-08-01
2 P purchase lines · 29 S sale lines · 225 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.